#app{
    span{
        font-size: 18px;
        display: inline-block;
        padding: 10px 0;
    }
    div{
        width: 10vw;
        height: 4vh;
        margin-top: 10px;
        button{
            width: 4.5vw;
            outline: none;
            height: 4vh;
            font-weight: bold;
            font-size: 15px;
        }
        input{
            outline: none;
            width: 9vw;
            height: 3vh;
            margin: 5px 0;
        }
    }
}